4
Invasion of China 1937 In July 1937, Hideki Tojo, chief of staff of Japans Army, launched the invasion into China.

5
As French, Dutch, and British colonies lay unprotected in Asia, Japanese leaders leaped at the opportunity to unite East Asia under Japanese control by seizing the oil fields of colonial lands.

6
By 1941, the British were too busy fighting Hitler to block Japanese expansion in the Pacific. Only the U.S. and its Pacific islands remained in Japans way.

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The Japanese began their southward push in July 1941 by taking over French military bases in Indochina (now Viet Nam, Cambodia, and Laos.) The United States protested this act of aggression by cutting off trade with Japan.

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The embargoed U.S. goods included one Japan could not live without – oil to fuel its war machine. Japanese military leaders warned that without oil, Japan could be defeated without its enemies ever striking a blow.

9
The military leaders declared that Japan must either persuade the United States to end its oil embargo or seize the oil fields in the Dutch East Indies. This would mean war.

10
Shortly after becoming the prime minister of Japan, Hideki Tojo met with Emperor Hirohito. Tojo promised the emperor that the Japanese government would attempt to preserve peace with the Americans.

11
Nevertheless, on November 5, 1941, Tojo ordered the Japanese navy to prepare for an attack on the United States.

12
The U.S. military had broken Japans secret communication codes and learned that Japan was preparing for a strike. What it didnt know was where the attack would come.

13
Late in November, Roosevelt sent out a war warning to military commanders in Hawaii, Guam, and the Philippines. If war could not be avoided, the warning said,the United States desires that Japan commit the first overt act. And the nation waited.

14
Peace Talks The peace talks with the Japanese went on for a month. Then on December 6, 1941, Roosevelt received a decoded message that instructed Japans peace envoy to reject all American peace proposals. This means war, an upset Roosevelt declared. Japanese Flag

15
Early the next morning, a Japanese dive-bomber swooped low over Pearl Harbor – the largest U.S. naval base in the Pacific.

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This bomber was followed by more than 180 Japanese warplanes launched from six aircraft carriers.

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As the first Japanese bombs found their targets, a radio operator flashed this message: Air raid on Pearl Harbor. This is not a drill.

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For an hour and a half, the Japanese planes were barely disturbed by U.S. anti-aircraft guns and blasted target after target.

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By the time the last plane soared off around 9:30 A.M., the devastation had been massive.

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American Casualties In less than two hours, the Japanese had killed 2,403 Americans and wounded 1,178 more.

21
The surprise raid had sunk or damaged 21 ships, including 8 battleships – nearly the whole U.S. Pacific fleet.

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More the 300 aircraft were severely damaged or destroyed. These loses constituted greater damage than the U.S. Navy had suffered in all of World War I.

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Effects/Outcome Japan dealt a seemingly crippling blow to the U.S. Pacific fleet (U.S. Pacific Fleet aircraft carriers: Lexington, Enterprise, & Saratoga were not in port) Japan began their quest for a Pacific empire The U.S. finally was forced to join World War II (The Sleeping Giant was awakened) The U.S. & Great Britain declare war on Japan (Dec. 8, 1941) Germany & Italy declare war on the U.S. (Dec. 11, 1941)

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For all the damage done at Pearl Harbor, perhaps the greatest was to the cause of isolationism. Many who had been former isolationists now supported an all-out American effort.